Effect of Biopolymer Matrix on Slow Release Capacity From Biopesticides Based on Citronella Oil

Abstract

. Some biopolymer materials can be used as filler to increase the slow release capacity of the active component. Technology modification of biopesticide production processes to increase its slow release capacity can use sodium alginate, maltodextrin and CMC (Carboxy Methyl Celluose). The purpose of this research activity was to modify the formulation of the use of several types and concentrations of biopolymers and analyze the characteristics of slow release in citronella oil-based biopesticides. The research method was carried out in stages including: produced nano emulsions, added biopolymer matrices and analyzed their characteristics as well as the slow release capacity of biopesticides with citronella oil ingredients. The biopolymer concentration ranges added are 1, 2 and 5%. While the addition of CMC was done using concentrations of 0.5, 1 and 2%. Based on the results of the study showed that the maximum addition of maltodextrin was 2% and the maximum CMC addition was 1%. Whereas addition of Sodium alginate results in unstable biopesticide products and separate solutions. The size of the droplet has a range between 131.8 to 177.1 nm. Based on the results of the analysis of citronella components and dl-Limonene experiencing fluctuating releases during 0 to 12 days. The next research activity requires optimization of activities before implementation at the field level.